CN1050675C - 光调器和光度头调节方法 - Google Patents

光调器和光度头调节方法 Download PDF

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Publication number
CN1050675C
CN1050675C CN94109023A CN94109023A CN1050675C CN 1050675 C CN1050675 C CN 1050675C CN 94109023 A CN94109023 A CN 94109023A CN 94109023 A CN94109023 A CN 94109023A CN 1050675 C CN1050675 C CN 1050675C
Authority
CN
China
Prior art keywords
laser beam
light
light modulator
optical head
optical axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN94109023A
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English (en)
Chinese (zh)
Other versions
CN1103168A (zh
Inventor
山田文明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of CN1103168A publication Critical patent/CN1103168A/zh
Application granted granted Critical
Publication of CN1050675C publication Critical patent/CN1050675C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Lens Barrels (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)
CN94109023A 1993-08-24 1994-08-09 光调器和光度头调节方法 Expired - Fee Related CN1050675C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP209572/93 1993-08-24
JP5209572A JP2549249B2 (ja) 1993-08-24 1993-08-24 光変調装置及び光学ヘッドの調整方法

Publications (2)

Publication Number Publication Date
CN1103168A CN1103168A (zh) 1995-05-31
CN1050675C true CN1050675C (zh) 2000-03-22

Family

ID=16575059

Family Applications (1)

Application Number Title Priority Date Filing Date
CN94109023A Expired - Fee Related CN1050675C (zh) 1993-08-24 1994-08-09 光调器和光度头调节方法

Country Status (5)

Country Link
US (1) US5515355A (de)
EP (1) EP0640961A1 (de)
JP (1) JP2549249B2 (de)
CN (1) CN1050675C (de)
SG (1) SG43728A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5708633A (en) * 1995-06-07 1998-01-13 Discovision Associates Method and apparatus for manufacturing information storage devices
US7433144B2 (en) * 1999-03-04 2008-10-07 Convolve, Inc. Dynamic system control method
US6631302B1 (en) * 2000-04-06 2003-10-07 Dphi Acquisitions, Inc. System and method for aligning components of optical head

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS631433A (ja) * 1986-06-21 1988-01-06 Shinto Paint Co Ltd 洗浄装置
JPS6314330A (ja) * 1986-07-07 1988-01-21 Brother Ind Ltd 光デイスク用光学ヘツド
JP2584000B2 (ja) * 1988-09-17 1997-02-19 日本電気ホームエレクトロニクス株式会社 光ヘッドの組立調整方法及び装置
JPH02232825A (ja) * 1989-03-04 1990-09-14 Nec Home Electron Ltd 光ヘッドの光軸調整方法及び装置
JPH02294944A (ja) * 1989-05-08 1990-12-05 Matsushita Electric Ind Co Ltd 光学ヘッド調整装置
US5157459A (en) * 1989-08-29 1992-10-20 Asahi Kogaku Kogyo Kabushiki Kaisha Wave front aberration measuring apparatus

Also Published As

Publication number Publication date
JPH0778372A (ja) 1995-03-20
US5515355A (en) 1996-05-07
EP0640961A1 (de) 1995-03-01
CN1103168A (zh) 1995-05-31
SG43728A1 (en) 1997-11-14
JP2549249B2 (ja) 1996-10-30

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SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee